When trying to browse the database with the Schema Browser, the following error occurs:
"ERROR [IBM][DB2.NET] SQL0902 An Unexpected exception has occurred in process: 3552 Thread 1 AppDomain"
Also the same error is occurring when importing over 290,000 rows into one table, then browsing the table.
This can occur if Toad is unable to sort the values of some specific date/time fields in columns in the data grid.
Waiting for fix in a future release of Toad for SQL Server